LIST OF HOMOPTEROUS INSECTS. 87 
vertex. Mesothorax with a keel on each side. Legs very stout. 
Fore wings with the costa somewhat gibbous near the base ; areolets 
with a slight metallic tinge; veins tawny. Hind wings grayish. 
Length of the body 3 lines; of the wings 7 lines.’ 
a, Mexico. From M. Sallé’s collection. 
Issus cLYPEATUS. 
Viridis aut viridi-fuscus, nigro notatus; vertex transversus, 
depressus ; frons tricarinata; prothorax antice convexus ; 
mesothorax bicurinatus ; ale antice submetallice, costu basi 
subgibbosa ; postice cinerascentes. 
Green, or greenish brown, marked with black, especially be- 
neath. Vertex depressed, twice broader than long; front flat, with 
three indistinct keels, a little narrower towards the vertex, slightly 
notched in the middle by the face. Prothorax more than twice 
broader than long, convex in front, hardly extending over the 
vertex. Mesothorax with a keel on each side. Fore wings with a 
slight metallic tinge; somewhat gibbous along the costa; veins 
green. Hind wings grayish. Length of the body 23 lines; of the 
wings 6 lines. 
This species may be distinguished from the preceding by the 
pest which is not sloping, and not produced on each side by the 
ace, 
a. Mexico. From M. Sallé’s collection, 
Issus CASssIDIFoRMIS. 
Niger ; vertex transversus, depressus ; frons oblonga, tricarinata ; 
prothorax antice convecus ; mesothorax tricarinatus; tibiae 
tarsique fluvo fasciata, ale antica testaceo varie, guttis 
duabus aut tibus plagaque albidis; postice obscure ci- 
neree. 
Black. Vertex depressed, hardly twice broader than long ; 
front much longer than broad, with nee indistinct keels, a little 
narrower towards the vertex, with a slight transverse ridge towards 
the face. Prothorax more than twice broader than long, convex 
along the fore border, which extends slightly over the vertex. 
Mesothorax with three indistinct keels. Tibie with a yellow band 
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